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[Gannet <1404958@xxxxxxxxxxxxxxxxxx>]

It starts now with Linux 3.19RC2 but there are slow performance.

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https://bugs.launchpad.net/bugs/1404958

Title:
  Linux 3.19: VM fails to start with libvirtError: internal error:
  unable to execute QEMU command

Status in libvirt package in Ubuntu:
  Confirmed
Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Trying to start my VM immediately after start it switches to pause in
  virt-manager. Pushing the pause button to unpause causes error window
  to appear:

  Помилка під час поновлення роботи домену: internal error: unable to
  execute QEMU command 'cont': Resetting the Virtual Machine is required

  Traceback (most recent call last):
    File "/usr/share/virt-manager/virtManager/asyncjob.py", line 89, in cb_wrapper
      callback(asyncjob, *args, **kwargs)
    File "/usr/share/virt-manager/virtManager/asyncjob.py", line 125, in tmpcb
      callback(*args, **kwargs)
    File "/usr/share/virt-manager/virtManager/domain.py", line 1385, in resume
      self._backend.resume()
    File "/usr/lib/python2.7/dist-packages/libvirt.py", line 1951, in resume
      if ret == -1: raise libvirtError ('virDomainResume() failed', dom=self)
  libvirtError: internal error: unable to execute QEMU command 'cont': Resetting the Virtual Machine is required

  It seems it is a some kind of regression. With Linux 3.18 all is ok.
  Linux 3.19RC1 taken here: http://kernel.ubuntu.com/~kernel-ppa/mainline/
  Kubuntu 14.10 x86_64
  Libvirt0: 1.2.11-0~14.10~ppa1
  Virt-manager: 1:1.1.0-1~getdeb2
  --- 
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  CurrentDesktop: KDE
  DistroRelease: Ubuntu 14.10
  InstallationDate: Installed on 2014-06-08 (197 days ago)
  InstallationMedia: Kubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.1)
  Package: linux (not installed)
  ProcEnviron:
   LANGUAGE=uk:en
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=uk_UA.UTF-8
   SHELL=/bin/bash
  Tags:  utopic
  Uname: Linux 3.19.0-031900rc1-generic x86_64
  UnreportableReason: The running kernel is not an Ubuntu kernel
  UpgradeStatus: Upgraded to utopic on 2014-10-24 (59 days ago)
  UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  --- 
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  CurrentDesktop: KDE
  DistroRelease: Ubuntu 14.10
  InstallationDate: Installed on 2014-06-08 (197 days ago)
  InstallationMedia: Kubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.1)
  Package: linux (not installed)
  Tags:  utopic
  Uname: Linux 3.19.0-031900rc1-generic x86_64
  UnreportableReason: The running kernel is not an Ubuntu kernel
  UpgradeStatus: Upgraded to utopic on 2014-10-24 (59 days ago)
  UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  --- 
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  DistroRelease: Ubuntu 14.10
  InstallationDate: Installed on 2014-06-08 (197 days ago)
  InstallationMedia: Kubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.1)
  Package: linux (not installed)
  ProcEnviron:
   LANGUAGE=uk:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=uk_UA.UTF-8
   SHELL=/bin/bash
  Tags:  utopic
  Uname: Linux 3.19.0-031900rc1-generic x86_64
  UnreportableReason: The running kernel is not an Ubuntu kernel
  UpgradeStatus: Upgraded to utopic on 2014-10-24 (59 days ago)
  UserGroups:
   
  _MarkForUpload: True
  --- 
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  CurrentDesktop: KDE
  DistroRelease: Ubuntu 14.10
  InstallationDate: Installed on 2014-06-08 (197 days ago)
  InstallationMedia: Kubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.1)
  Package: linux (not installed)
  Tags:  utopic
  Uname: Linux 3.19.0-031900rc1-generic x86_64
  UnreportableReason: The running kernel is not an Ubuntu kernel
  UpgradeStatus: Upgraded to utopic on 2014-10-24 (59 days ago)
  UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  --- 
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  CurrentDesktop: KDE
  DistroRelease: Ubuntu 14.10
  InstallationDate: Installed on 2014-06-08 (197 days ago)
  InstallationMedia: Kubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.1)
  Package: linux (not installed)
  ProcCmdline: BOOT_IMAGE=/@/boot/vmlinuz-3.19.0-031900rc1-generic root=UUID=b76fc0ae-d31c-4b13-8f4e-424542d850c9 ro rootflags=subvol=@ quiet splash radeon.dpm=1 vt.handoff=7
  ProcVersionSignature: Error: [Errno 2] Немає такого файла або каталогу: '/proc/version_signature'
  Tags:  utopic utopic
  Uname: Linux 3.19.0-031900rc1-generic x86_64
  UnreportableReason: The running kernel is not an Ubuntu kernel
  UpgradeStatus: Upgraded to utopic on 2014-10-24 (59 days ago)
  UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  modified.conffile..etc.libvirt.qemu.conf: [inaccessible: [Errno 13] Відмовлено у доступі: u'/etc/libvirt/qemu.conf']
  modified.conffile..etc.libvirt.qemu.networks.default.xml: [inaccessible: [Errno 13] Відмовлено у доступі: u'/etc/libvirt/qemu/networks/default.xml']
  --- 
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  CurrentDesktop: KDE
  DistroRelease: Ubuntu 14.10
  InstallationDate: Installed on 2014-06-08 (197 days ago)
  InstallationMedia: Kubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.1)
  Package: linux (not installed)
  ProcCmdline: BOOT_IMAGE=/@/boot/vmlinuz-3.19.0-031900rc1-generic root=UUID=b76fc0ae-d31c-4b13-8f4e-424542d850c9 ro rootflags=subvol=@ quiet splash radeon.dpm=1 vt.handoff=7
  ProcVersionSignature: Error: [Errno 2] Немає такого файла або каталогу: '/proc/version_signature'
  Tags:  utopic utopic
  Uname: Linux 3.19.0-031900rc1-generic x86_64
  UnreportableReason: The running kernel is not an Ubuntu kernel
  UpgradeStatus: Upgraded to utopic on 2014-10-24 (59 days ago)
  UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  modified.conffile..etc.libvirt.qemu.conf: [inaccessible: [Errno 13] Відмовлено у доступі: u'/etc/libvirt/qemu.conf']
  modified.conffile..etc.libvirt.qemu.networks.default.xml: [inaccessible: [Errno 13] Відмовлено у доступі: u'/etc/libvirt/qemu/networks/default.xml']

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